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57683988 = 2234178037
BaseRepresentation
bin1101110000001…
…1000000010100
311000112122120000
43130003000110
5104231341423
65420211300
71300206615
oct334030024
9130478500
1057683988
112a61991a
1217399b30
13bc48a4b
147937c0c
1550e6843
hex3703014

57683988 has 30 divisors (see below), whose sum is σ = 150798186. Its totient is φ = 19227888.

The previous prime is 57683939. The next prime is 57684037. The reversal of 57683988 is 88938675.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57683939) and next prime (57684037).

It can be written as a sum of positive squares in only one way, i.e., 50296464 + 7387524 = 7092^2 + 2718^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 88695 + ... + 89342.

Almost surely, 257683988 is an apocalyptic number.

It is an amenable number.

57683988 is an abundant number, since it is smaller than the sum of its proper divisors (93114198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57683988 is a wasteful number, since it uses less digits than its factorization.

57683988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178053 (or 178042 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 57683988 is about 7594.9975641866. The cubic root of 57683988 is about 386.3833699104.

The spelling of 57683988 in words is "fifty-seven million, six hundred eighty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 178037 356074 534111 712148 1068222 1602333 2136444 3204666 4806999 6409332 9613998 14420997 19227996 28841994 57683988